package controller;

import com.alibaba.fastjson2.JSON;
import com.alibaba.fastjson2.JSONObject;
import service.OrderService;
import service.impl.OrderServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.BufferedReader;
import java.io.IOException;

/**
 * @author gzp
 * @create 2022-12-14 12:54
 */
@WebServlet("/order/delete")
public class OrderDeleteServlet extends HttpServlet {
    OrderService orderService = new OrderServiceImpl();

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //设置字符格式
        req.setCharacterEncoding("utf-8");
        resp.setCharacterEncoding("utf-8");

        //以字符流的形式接收数据
        BufferedReader reader = new BufferedReader(req.getReader());
        StringBuilder json = new StringBuilder();
        String line = null;
        while ((line = reader.readLine()) != null) {
            json.append(line);
        }
        //将接收的数据转换为json对象方便后面获取
        JSONObject jsonObject = JSON.parseObject(json.toString());

        //从json对象中以键值对的方式获取数据
        int oid = jsonObject.getInteger("oid");

        //创建一个用来传数据的JSON对象
        JSONObject message = new JSONObject();

        //根据oid删除订单信息
        if (!orderService.delete(oid)) {
            return;
        }
        //跳转页面
        message.put("address", "http://localhost:8080/Indenture/order/");
        resp.getWriter().write(message.toString());
    }
}
